json-formatter-js
v2.5.18
Published
JSON Formatter core library
Downloads
182,706
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JSON Formatter
Render JSON objects in HTML with a collapsible navigation.
Check out <pretty-json>
Custom Element for a more portable and light solution
Usage
Install via npm
npm install --save json-formatter-js
Include json-formatter.js
from the dist
folder in your page.
import JSONFormatter from "json-formatter-js";
const myJSON = { ans: 42 };
const formatter = new JSONFormatter(myJSON);
document.body.appendChild(formatter.render());
API
JSONFormatter(json [, open [, config] ])
json
(Object
) - required
The JSON object you want to render. It has to be an object or array. Do NOT pass a raw JSON string.
open
(Number
)
Default: 1
This number indicates up to how many levels the rendered tree should expand. Set it to 0
to make the whole tree collapsed or set it to Infinity
to expand the tree deeply.
config
(Object
)
Default:
{
hoverPreviewEnabled: false,
hoverPreviewArrayCount: 100,
hoverPreviewFieldCount: 5,
animateOpen: true,
animateClose: true,
theme: null,
useToJSON: true,
sortPropertiesBy: null,
maxArrayItems: 100,
exposePath: false
}
Available configurations:
Hover Preview
hoverPreviewEnabled
: enable preview on hover.hoverPreviewArrayCount
: number of array items to show in preview. Any array larger than this number will be shown asArray[XXX]
whereXXX
is the length of the array.hoverPreviewFieldCount
: number of object properties to show for object preview. Any object with more properties than this number will be truncated.
Theme
theme
: a string that can be any of these options:['dark']
. Look atsrc/style.less
for making new themes.
Animation
animateOpen
: enable animation when expanding a JSON object. True by default.animateClose
: enable animation when closing a JSON object. True by default.
Rendering Options
useToJSON
: use thetoJSON
method to render an object as a string, if available. Useful for objects likeDate
or Mongo'sObjectID
that might make more sense as a string than as empty objects. True by default.sortPropertiesBy
: use the given sorting function to deeply sort the object properties.maxArrayItems
: use to split arrays into multiple smaller groups. This value defines the size of each group. If the length of the array is less than this number, no groups are created. It's the same behavior as the Webkit developer tool's console.exposePath
: add an array of keys to each node dataset so it is possible to correlate nodes to the original JSON.
openAtDepth([depth])
const formatter = new JSONFormatter({ ... });
document.body.appendChild(formatter.render());
formatter.openAtDepth(3);
depth
(Number
)
Default: 1
This number indicates up to how many levels the rendered tree should open. It allows use cases such as collapsing all levels (with value 0
) or expanding all levels (with value Infinity
).
Development
Install the dependencies:
npm install
Run the dev server:
npm run dev
Running Tests
Once:
npm test